The Mary Borden collection consists of manuscripts, correspondence, a diary, photographs, scrapbooks, and other material.
Manuscripts by Borden in the collection include The Romantic Lady (Knopf, 1920); Jane--Our Stranger (Knopf, 1923); Three Pilgrims and a Tinker (Knopf, 1924); Jericho Sands (Heinemann, 1925); Four O'Clock, and Other Stories (Doubleday, Page, 1927); Flamingo, or the American Tower (Doubleday, Page, 1927); Jehovah's Day (Heinemann, 1928); The Forbidden Zone (Heinemann, 1929), with some pages stamped “censored” by the War Ministry; A Woman with White Eyes (Doubleday, Doran, 1930); Sarah Gay (Heinemann, 1931); Mary of Nazareth (Doubleday, Doran, 1933); The King of the Jews (Little, Brown, 1935); Action for Slander (Heinemann, 1936); Passport for a Girl (Harper, 1939); Journey Down a Blind Alley (Harper, 1946); No. 2 Shovel Street (Heinemann, 1949); Catspaw (Longmans, Green, 1950); Martin Merriedew (Heinemann, 1952); Margin of Error (Longmans, Green, 1954); The Hungry Leopard (Longmans, Green, 1956); The Diary of Sir Peter Bottle, Serious Snob (unpublished); a stage play version of Action for Slander, by Borden and Felix Felton; a teleplay titled "The Woman's Touch"; an account of Borden's interview with Albert Einstein; a film treatment for King of the Jews; and drafts of two early short stories. Also present is a short essay by Maj. Gen. Sir Edward Louis Spears (Borden's husband), titled "On a Paper Written by Mary Borden," about Borden's meeting with Einstein.
Correspondence in the collection includes several personal and professional letters, to and from Borden. The letters date from the 1920s on. Notable correspondents include Faith Baldwin, Algernon Blackwood, Cecil Roberts, Maurice Baring, Geoffrey de Havilland, Julian Huxley, Winston Churchill, Noel Coward, and Augustine Birrell. Letters regarding Mary of Nazareth and the lawsuit brought against Borden by the New Catholic Press and the Catholic Herald include letters of support and fan letters, including items from Archibald Murray and Arnold Gyde. Letters regarding King of the Jews includes letters with a board of film censors about the novel being made into a film, correspondence with Punchregarding their "attack" on the film; and a letter from Alexander Korda. Letters regarding Journey Down a Blind Alley include letters from Thomas Paget, Harold MacMichael, May Casey, Harold Macmillan, and Arthur H. Frazier.
The diary in the collection is labeled "Diary During Crisis," and dated 1938.
Photographs in the collection include several photo albums. These are: one dated 1915-1924, and including images of Borden, her family and friends, and several British and European statesmen; "Spears Ambulance," dated 1914-1918, including scenes from World War I (barracks, buildings, soldiers, officers, etc.); "Hadfield-Spears Reunion," 1962, including photos of actress Billie Burke; and "Ghana Visit," 1964. Other photographs include images of Borden and her family, dating from ca. 1900 to 1966.
Scrapbooks in the collection consist of three albums about Borden's son, Michael Justin Aylmer Spears. The albums include photographs, letters, prose, school reports, and other items, dating from 1921 to 1938.
Other items in the collection include Borden's juvenilia (letters, early writings, photos, sketch book, etc.), dating roughly 1898-1904; Borden's bachelor of arts degree from Vassar College (1907); certificates for Borden's Medal of Honor for Merit (1942), her Commander of the National Order of the Cedar (1944), and her Vermillion Medal of the City of Paris (1962); art work by Borden and others; and a tape recording of a telephone call to Borden from G. A. Harrer, recorded at the studio of radio station WBUR in 1966.